104 PHALACRID^. 



M. Brisout had corroborated as true brnnnrpes an insect from Mr. G. R. 

 Waterhouse's collection taken by Mr. Brewer. 



P. hybridus, Flach. (Verb. Nat. Ver. Briinn, xxvii. 61, 02). 

 Rotundate oval, of about the same average size as P. cornscus, and 

 very variable in size, like that species, but distinguished from it by the 

 fact that the head and thorax are not alutaceous ; the elytra are 

 punctured in more or less regular rows, and the interstices ai^e scarcely 

 visibly punctvired ; the colour is shining black ; the head and thorax 

 ai'e very finely and rather thickly punctured, the spaces between the 

 punctures being quite smooth ; the elytra are very delicately reticulate 

 or alutaceous, if viewed vinder a high power ; the last joint of the 

 antennse is shorter than in P. coruscus ; the thorax has the posterior 

 angles right angles and the base margined in the middle ; the antennae 

 and legs are black, but a variety occurs in which they are reddish. 

 L. 1^-3 J mm. 



Chiefly, but not altogether, a coast species : Lewisham, Sheppey, 

 Southend, Erith, Felixstowe, Bognor, Deal, Sandwich. It is probably 

 mixed with P. coruscus in collections ; in the var, confusus, Guillet, 

 the sutural interstice is very finely and diffusely punctured, while in 

 the type form it has a row of four or five larger punctures. 



OLIBRUS, Erichson. 

 The following table of our British species will be found useful : it 

 was published by Mr. E. A. jSTewbeiy in the Entomologist's Recoi-d, 

 vol. xl. 1899, p. 136. 



I. Elytra almost entirely alutaceous. 



i. Elytra greenish or blackish-bronze, 

 underside and club of antennte dark. 



A. Form longer, plainly narrowed behind 0. .eneus, P. 



B. Form shorter and more convex, 



nearly regularly elliptical . . .0. millefolii, Payh. 



ii. Elytra brown, paler towards apex, 

 antennfe and underside pale red-yellow. 



A. Suture and outer margin of elytra 



darker than disc . . . .0. corticalis, Panz. 



{affinis, Steph., nee Sturm) 



B. Suture and outer margin of elytra 



not darker than disc . . . .0. liquidus, Er. 



II. Elytra not alutaceous, except some- 

 times at extreme apex. 



i. Size moderate (1 J-2| mm.). 



A. Elytra entirely black, average size 



larger . . . . . .0. flavicornis, Sturm. ".. ':^ 



{helveticus, Rye ?) 



B. Elytra with at least traces of a 

 brown spot at apex. 



